Lot 20970 – 1878-1952, Officials specialised display collection

1878-1952, Officials specialised display collection incl. 20 covers and 1’130 mint and used stamps, incl. 1889 cover with negative seal, various first official stamp covers, 1913 cover sent registered to UK with three 5m, 1917 cover sent registered to the USA with eight 5m stamps with inverted overprints, recorded and unrecorded varieties with broken characters, missing characters, shifted ovpts, multiples, controls. etc., a wonderful collection with potential for development into an exhibit collection.